May 19, 2023

Radio Signals From a Dying Star Raise Questions About Supernova Explosions

Posted by in category: cosmology

When stars like our Sun die, they tend to go out with a whimper and not a bang – unless they happen to be part of a binary (two) star system that could give rise to a supernova explosion.

Now, for the first time, astronomers have spotted the radio signature of just such an event in a galaxy more than 400 million light-years away. The finding, published today in Nature, holds tantalizing clues as to what the companion star must have been like.

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